html,
body {
  height: 100%;
  background-image: url(../img/cbg.jpg?201910);
  background-size: 100% 100%;
}

body {
  background-color: #000000;
  margin: 0;
  font-family: Helvetica, sans-serif;
  ;
  overflow: hidden;
}

video {
  mix-blend-mode: screen;
}

a {
  color: #ffffff;
}

.element {
  width: 80px;
  height: 80px;
  overflow: hidden;
}

.element img {
  width: 100%;
  height: 100%;
}

.container {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
}

.bgvideo {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.bgqr {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  z-index: 10;
  background-color: rgba(0, 0, 0, 0.6)
}

.bgqr .qrcode {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 300px;
  height: 300px;
  margin-left: -150px;
  margin-top: -150px;
}